LS5 Tube Layout


I just moved my LS5 from Europe. I took out the tubes, because it was going the long way by boat. I thought I had a layout of which socket gets which tube. quess i don't.

I think they go
++++++++++++++back+++++++++++++
----------12BH7--12BH7---------
--12BH7-12BH7-----12BH7-12BH7--
---6922--6922------6922--6922--
++++++++++++++front++++++++++++

But it would be nice to know for sure. I called Audio Research, but I guess they are too busy to call back.

Your help would really be appreciated!
mibix9
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The LS5 came in 3 flavors MKI, MKII and MKIII. Each of them had a different Tube set. The original MKI, which is the one in question used 6x12BH7 and 4x6922. Thanks to Steve at greatnorthensound for verifying my original assumption of the tube placement was correct.

Here are the tube complement descriptions from ARDB:
LS5: (4) 6922, (6)12BH7
LS5 MKII: (10) 6922
LS5 MKIII: (8) 6922/E88cc dual triode

There is a 4th incarnation, which greatnorthernsound offered as a mod, bringing the LS5 up to Reference level. Steve has enough parts to do one more mod, so I am going to give that a try.

Thanks for your responses.
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